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International Journal of Railway Technology
IJRT, Volume 2, Issue 2, 2013
Novel Stability Theory based on Absorbing-Band Anti-Hunting Mechanism of High-Speed Bogies
M.W. Piao1, S.L. Liang2, H.L. Wei1, J. Fang1 and W.Z. Zhao1
1Mechanical Engineering School, Dalian Jiaotong University, Dalian, China
M.W. Piao, S.L. Liang, H.L. Wei, J. Fang, W.Z. Zhao, "Novel Stability Theory based on Absorbing-Band Anti-Hunting Mechanism of High-Speed Bogies", International Journal of Railway Technology, 2(2), 1-33, 2013. doi:10.4203/ijrt.2.2.1
Keywords: high-speed rolling stock, margin of bogie stability, anti-hunting mechanism, high-frequency impedance, track-shift force, stability robustness.
This paper shows how to improve the safety stability margin of high-speed rolling stock based on the absorbing-band anti-hunting mechanism. In comparison with the over-damped anti-hunting mechanisms, it is indicated that the track-shift force can be reduced considerably with the anti-hunting high-frequency impedance being increased moderately. Through examples, it is demonstrated that the technical advantages of anti-hunting soft-attachment have been validated sufficiently in engineering applications. The optimal configuration of anti-hunting dampers is achieved further with the corresponding economical velocity of (350 – 380) km/h, so that the stability robustness can be emphasized more for the Chinese HSR operation of 300 km/h running.
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